Wire cutting anti-deviation device

Abstract

The utility model relates to the technical field of linear cutting devices, in particular to a linear cutting anti-deviation device which comprises a supporting bottom plate, a workpiece plate used for containing workpieces is fixedly installed at the upper end of the supporting bottom plate, two supporting frames are fixedly installed at the upper end of the supporting bottom plate, and transverse lead screws are rotationally installed at the ends, close to each other, of the two supporting frames. The outer surface of the transverse lead screw is sleeved with a movable plate in a threaded mode, a supporting plate is slidably installed at the front end of the movable plate, a stabilizing device is arranged at the front end of the supporting plate, vertical movement of the extrusion lead screw is controlled by rotating the adjusting sleeve, then the bottom end of the extrusion lead screw extrudes and abuts against the rotating shaft, and the tightening degree of the conductive wire is controlled. When the steel wire is tightened too tightly, the tensile force borne by the steel wire exceeds the tensile strength of the material, and the steel wire is prone to breakage.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting devices, and particularly relates to a wire cutting anti-offset device. Background Technique

[0002] Wire cutting is a processing technology that uses a moving electrode wire to cut a workpiece. During cutting, a wire cutting wire feeding mechanism is required to convey the electrode wire. In a wire cutting wire feeding mechanism, multiple conveying wheels are usually provided, and at least two conveying wheels are arranged oppositely, so that the electrode wire passes between the two opposite conveying wheels, and the two conveying wheels press the electrode wire and convey the electrode wire.

[0003] After a large amount of retrieval, it is found that the prior art publication number is CN 112958860 B, which discloses an anti-offset device for a wire cutting wire feeding mechanism. In view of the problem that in the existing wire cutting wire feeding mechanism, the distance between the conveying wheels is usually constant, that is, the tension of the electrode wire is constant. If the position of the electrode wire is offset, it is often difficult to adjust. The following solution is proposed. It includes a chassis, and four support rods are symmetrically and slidably connected in the chassis, and conveying wheels are rotatably sleeved on the support rods. An electrode wire is drivingly connected to the four conveying wheels. A rotating shaft is rotatably connected to an inner wall of one side of the chassis. The present invention can release the limit on the rotating shaft by starting a biaxial motor and can drive the rotating shaft to rotate, so as to drive the four conveying wheels to move away from each other in pairs, realize close support and limit on the electrode wire, and can effectively prevent the electrode wire from offsetting during work, so it has good practicability.

[0004] Therefore, based on the above retrieval and in combination with the existing ones, during the use of the above solution, the wire cutting device mainly relies on steel wire as the electrode, and cuts the workpiece through the spark erosion effect generated by pulsed current. However, during the installation process of the steel wire, fine adjustment is often required for the tension control to avoid the generation and expansion of microcracks inside the steel wire due to the long-term high-tension state of the steel wire. These cracks gradually expand over time and eventually lead to sudden fracture. For this reason, we propose a wire cutting anti-offset device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wire cutting anti-offset device to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A wire cutting anti-offset device, including a supporting bottom plate, on the upper end of the supporting bottom plate is fixedly installed a workpiece plate for placing a workpiece, on the upper end of the supporting bottom plate are fixedly installed two support frames, at the mutually approaching ends of the two support frames is rotatably installed a transverse lead screw, on the outer surface of the transverse lead screw is thread sleeved with a movable plate, at the front end of the movable plate is slidably installed a support plate, and at the front end of the support plate is provided with a stabilizing device, at the upper inner end of the movable plate is rotatably installed a vertical lead screw, and the support plate is thread sleeved on the outer surface of the vertical lead screw.

[0007] As a further scheme of the present utility model, the stabilizing device includes an installation frame, the installation frame is fixedly installed at the left end of the support plate, at the left end of the support plate is fixedly installed an extension plate, and at the end of the extension plate away from the support plate is detachably installed a connection base.

[0008] As a further scheme of the present utility model, at the left end of the support plate is fixedly installed a connection seat, the connection seat is made of insulating material, at the left end of the connection seat is fixedly installed a wire clamp, and between the wire clamp and the connection base is connected by a conductive wire.

[0009] As a further scheme of the present utility model, at the end of the installation frame away from the support plate is rotatably installed a support rotating shaft, and the conductive wire is wound around the outer surface of the support rotating shaft.

[0010] As a further scheme of the present utility model, at the end of the installation frame away from the support plate is fixedly installed a connection frame, and the connection frame is located above the support rotating shaft, at the bottom end of the connection frame is rotatably installed an abutting rotating shaft, and the outer surface of the abutting rotating shaft is in contact with the outer surface of the conductive wire.

[0011] As a further scheme of the present utility model, through the connection frame is provided an extrusion lead screw, at the bottom end of the extrusion lead screw is fixedly installed an abutting bearing, the outer surface of the abutting bearing is in contact with the outer surface of the abutting rotating shaft, on the outer surface of the extrusion lead screw is thread sleeved with an adjustment sleeve, and the adjustment sleeve is rotatably installed at the upper end of the connection frame.

[0012] As a further scheme of the present utility model, at the upper left and right ends of the connection frame are both provided with abutting columns, between the abutting columns and the connection frame is connected by a return spring, and the bottom ends of the abutting columns are rotatably connected to the left and right ends of the abutting rotating shaft.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. By rotating the adjusting sleeve, the up-and-down movement of the extrusion screw rod is controlled. Furthermore, by pressing against the rotating shaft with the bottom end of the extrusion screw rod, the tension degree of the conductive wire is controlled, reducing the risk that when the steel wire is overly tightened, the tensile force it bears exceeds the material's tensile strength, resulting in the easy breakage of the steel wire.

[0016] 2. The drive system of the transverse screw rod uses point-contact rolling motion, which greatly reduces the frictional resistance, enabling no tremor during startup and no crawling during low-speed operation, thus achieving high sensitivity and stability of the motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a wire cutting anti-offset device;

[0018] Figure 2 It is a schematic structural diagram at the support plate;

[0019] Figure 3 It is a schematic structural diagram on the right side of the support plate;

[0020] Figure 4 For Figure 3 The schematic structural diagram of part A in

[0021] Figure 5 It is a schematic structural diagram of the guide cylinder.

[0022] In the figure: 1. Support base plate; 2. Workpiece plate; 3. Support frame; 4. Transverse motor; 41. Transverse screw rod; 5. Vertical motor; 6. Movable plate; 61. Vertical screw rod; 62. Support plate;

[0023] 201. Mounting frame; 202. Support rotating shaft; 203. Guide cylinder; 204. Conductive wire; 205. Connection base; 206. Connection seat; 207. Contact point; 208. Extension plate;

[0024] 301. Extrusion screw rod; 302. Connection frame; 303. Return spring; 304. Contact column; 305. Contact rotating shaft; 306. Adjusting sleeve. SPECIFIC EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0026] Embodiment 1: Please refer to Figures 1 to 3, A wire cutting anti-offset device, including a support base plate 1. The upper end of the support base plate 1 is fixedly installed with a workpiece plate 2 for placing workpieces through bolts. The upper end of the support base plate 1 is fixedly installed with two support frames 3. A transverse lead screw 41 is rotatably installed at one end of the two support frames 3 close to each other. An activity plate 6 is sleeved on the outer surface of the transverse lead screw 41 in a threaded manner. And a support rod is fixedly installed at one end of the two support frames 3 close to each other through bolts. The activity plate 6 is slidably connected with the support rod, avoiding the situation that the activity plate 6 rotates by itself when the transverse lead screw 41 rotates. One end of the support frame 3 away from the activity plate 6 is fixedly installed with a transverse motor 4 through bolts. The output shaft of the transverse motor 4 is fixedly connected with the transverse lead screw 41;

[0027] A support plate 62 is slidably installed at the front end of the activity plate 6, and a stabilizing device is arranged at the front end of the support plate 62. A vertical lead screw 61 is rotatably installed at the upper end inside the activity plate 6. The support plate 62 is sleeved on the outer surface of the vertical lead screw 61 in a threaded manner. And a support rod is fixedly installed inside the activity plate 6. The support rod is slidably connected with the support plate 62, used to prevent the support plate 62 from rotating by itself when the vertical lead screw 61 rotates. The upper end of the activity plate 6 is fixedly installed with a vertical motor 5 through bolts. The output shaft of the vertical motor 5 is fixedly connected with the vertical lead screw 61.

[0028] Embodiment 2: Please refer to Figure 3 , 4 , A wire cutting anti-offset device, based on Embodiment 1, the stabilizing device includes a mounting frame 201. The mounting frame 201 is fixedly installed at the left end of the support plate 62. An extension plate 208 is fixedly installed at the left end of the support plate 62. And a connecting base 205 is detachably installed at one end of the extension plate 208 away from the support plate 62. A wire fixing device is fixedly installed at the inner end of the connecting base 205;

[0029] A connecting seat 206 is fixedly installed at the left end of the support plate 62. The connecting seat 206 is made of insulating material. A wire clamp is fixedly installed at the left end of the connecting seat 206. The wire clamp is connected with the connecting base 205 through a conductive wire 204. And the upper end of the conductive wire 204 is clamped and fixed through the wire clamp, and the bottom end is clamped and fixed through the wire fixing device. The extension plate 208 and the support plate 62 are fixedly connected through a tripod. Utilizing the stability of the tripod to further realize the stability of the extension plate 208;

[0030] A support rotating shaft 202 is rotatably installed at one end of the mounting frame 201 away from the support plate 62. The conductive wire 204 is wound around the outer surface of the support rotating shaft 202. And the support rotating shaft 202 is in the shape of an hourglass, that is, the conductive wire 204 is restricted at the center of the hourglass-shaped support rotating shaft 202 and cannot escape;

[0031] Please refer to Figure 4, a connecting frame 302 is fixedly installed at one end of the mounting bracket 201 away from the support plate 62, and the connecting frame 302 is located above the support rotating shaft 202. A contact rotating shaft 305 is rotatably installed at the bottom end of the connecting frame 302. The outer surface of the contact rotating shaft 305 is in contact with the outer surface of the conductive wire 204. The contact rotating shaft 305 is made of insulating material, and a chute is provided at the connection between the contact rotating shaft 305 and the connecting frame 302, so that the contact rotating shaft 305 can move up and down at the bottom end of the connecting frame 302;

[0032] A pressing screw rod 301 passes through the upper end of the connecting frame 302. A contact bearing is fixedly installed at the bottom end of the pressing screw rod 301. The outer surface of the contact bearing is in contact with the outer surface of the contact rotating shaft 305. A regulating sleeve 306 is sleeved on the outer surface of the pressing screw rod 301 by threads, and the regulating sleeve 306 is rotatably installed at the upper end of the connecting frame 302. Rotating the regulating sleeve 306 to move the pressing screw rod 301 up and down can realize pressing the contact rotating shaft 305 to control the tension degree of the conductive wire 204;

[0033] Contact columns 304 pass through the left and right ends of the upper side of the connecting frame 302. The contact columns 304 are connected to the connecting frame 302 through return springs 303. The bottom ends of the contact columns 304 are rotatably connected to the left and right ends of the contact rotating shaft 305. The contraction force of the return spring 303 makes the contact rotating shaft 305 have an upward force and is simultaneously resisted by the bottom end of the pressing screw rod 301;

[0034] Please refer to Figure 5 , a guiding cylinder 203 is fixedly installed at the bottom end of the mounting bracket 201. A contact point 207 is fixedly installed at the inner end of the guiding cylinder 203. The conductive wire 204 passes through the guiding cylinder 203 and the inside of the contact point 207. The contact point 207 is in contact with the outer surface of the conductive wire 204 and can release working current to flow to the conductive wire 204.

[0035] Working principle:

[0036] During use, the workpiece to be cut is placed on the upper end of the workpiece plate 2, and then the machine is started. First, the output shaft of the vertical motor 5 drives the vertical screw rod 61 to adjust the height of the support plate 62. After reaching the predetermined height, the horizontal motor 4 drives the horizontal screw rod 41 to rotate to drive the movable plate 6 to move left and right. Current flows from the contact point 207 to the conductive wire 204. Using the conductive wire 204 as an electrode, the workpiece is cut by the electrospark corrosion effect generated by the pulsed current;

[0037] By rotating the regulating sleeve 306 to control the up and down movement of the pressing screw rod 301, and then pressing the contact rotating shaft 305 by the bottom end of the pressing screw rod 301, the tension degree of the conductive wire 204 is controlled to prevent the conductive wire 204 from breaking due to excessive tension during work.

[0038] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A wire cutting anti-deviation device, comprising a supporting base plate (1), characterized in that: A workpiece plate (2) for placing workpieces is fixedly mounted on the upper end of the support base plate (1), and two support frames (3) are fixedly mounted on the upper end of the support base plate (1), and a transverse screw rod (41) is rotatably mounted on one end of the two support frames (3) close to each other, and a movable plate (6) is threadedly sleeved on the outer surface of the transverse screw rod (41), and a support plate (62) is slidably mounted on the front end of the movable plate (6), and a stabilizing device is provided at the front end of the support plate (62), and a vertical screw rod (61) is rotatably mounted on the inner upper end of the movable plate (6), and the support plate (62) is threadedly sleeved on the outer surface of the vertical screw rod (61).

2. A wire cutting anti-deviation device according to claim 1, characterized in that: The stabilizing device comprises a mounting frame (201), wherein the mounting frame (201) is fixedly mounted on the left end of a support plate (62), an extension plate (208) is fixedly mounted on the left end of the support plate (62), and a connecting base (205) is detachably mounted on an end of the extension plate (208) away from the support plate (62).

3. A wire cutting anti-deviation device according to claim 2, characterized in that: A connection seat (206) is fixedly mounted on the left end of the support plate (62), the connection seat (206) is made of insulating material, a wire clamp is fixedly mounted on the left end of the connection seat (206), and the wire clamp is connected to the connection base (205) via a conductive wire (204).

4. A wire cutting anti-deviation device according to claim 3, characterized in that: A support shaft (202) is rotatably mounted on one end of the mounting frame (201) away from the support plate (62), and the conductive wire (204) is wound on the outer surface of the support shaft (202).

5. A wire cutting anti-deviation device according to claim 4, characterized in that: A connecting frame (302) is fixedly mounted on one end of the mounting frame (201) away from the supporting plate (62), and the connecting frame (302) is located above the supporting shaft (202). An abutting shaft (305) is rotatably mounted on the bottom end of the connecting frame (302), and the outer surface of the abutting shaft (305) contacts the outer surface of the conductive wire (204).

6. A wire cutting anti-deviation device according to claim 5, characterized in that: An extrusion screw rod (301) is passed through the upper end of the connecting frame (302), an abutment bearing is fixedly installed at the lower end of the extrusion screw rod (301), the outer surface of the abutment bearing contacts the outer surface of the abutment shaft (305), an adjustment sleeve (306) is threadedly sleeved on the outer surface of the extrusion screw rod (301), and the adjustment sleeve (306) is rotatably installed on the upper end of the connecting frame (302).

7. The wire cutting anti-deviation device according to claim 6, characterized in that: Abutment columns (304) are provided at both left and right ends of the upper side of the connecting frame (302); the abutment columns (304) and the connecting frame (302) are connected via a return spring (303); and the bottom end of the abutment column (304) is rotatably connected to the left and right ends of the abutment shaft (305).

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